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(No Model.) 2 Sheets-Sheet 1.

P. J. PARSONS.

MECHANISM FOR EXTINGUISHING FIRES IN MALT, GRAIN, OR

OTHER MILLS.

No. 374,157. Patented Nov. 29, l887.-

- N. Finns, Pholo-Lilhognplwr. Waihiuglun. n. c.

(No Model.) I 2 Sheets-Sheet 2.

' P. J. PARSONS.

MECHANISM FOR EXTINGUISHING FIRES IN MALT, GRAIN, OR

OTHER MILLS.

No. 374,157. Patented Nov. 29,1887.

fig. 2.;

ATTORNEY UNITED STATES PATENT ()FFICE PAUL J. PARSONS, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR OF TWO- THIRDS TO JOHN A. AVERY AND JOSEPH SOHOLL, BOTH OF SAME PLACE.

MECHANISM FOR EXTINGUISHING FIRES IN MALT, GRAIN, OR OTHER MILLS.

SPECIFICATION forming part of Letters Patent No. 374,157, dated November 29, 1887. Application filed June 9, 1887. Serial No. 240,709. (No model.)

To all whom it may concern.-

Be it known that I, PAUL J. Pnnsoxs, a citizen of the United States, residing in the city and county of Philadelphia, State of Pennsylvauia, have invented a new and useful Improvement in Mechanism for Extinguishing Fires in Malt, Grain, or other Mills, which improvement is fully set forth in the following specification and accompanying drawings.

My invention consists of a malt, grain, or other mill provided with means whereby, in the event of explosions, the occurrence of fire, or creation of excessive heat whereby fire may be occasioned, steam or other medium is introduced into the mill to overcome or extinguish the same. 1

Figure 1 represents a perspective view of a malt or grain mill embodying my invention. Fig. 2 represents a vertical section thereof. Fig. 3 represents a side elevation thereof.

Similar letters of reference indicate corresponding parts in the several figures Referring to the drawings, A represents a malt or other grain mill, which, excepting the features of my invention applied thereto, is of well-known construction.

B represents a steam pipe, which leads from any suitable generator and having a branch, 0, which opens into the interior of the mill, as at a, said pipe having also a branch, D, which opens into the elevator A of the mill, as at b. At or about the place of junction of the pipe B and its branches 0 D is a valve, E, whose stem F is pivoted to the lever G, the latter being mounted on the standard H, rising from the pipe B. The lever G has one end entering the mill, where it is connected with a lever, J, by means of a link or arm, K, whose ends are pivoted to said levers G J, it being noticed that the lever Jis mounted on a hanger or bearingpiece, L, which is properly secured to the mill, and said lever J is partly within and partly without the mill. To the outer end of the lever J is pivoted an elbow-lever, M, the vertical limb of which has a shoulder, N, which rests freely on a ledge or arm, P, secured to the body of the mill, whereby the lever M is prevented from dropping, and thus by means of the connected levers J G the valve E is held in closed position,

preventing steam from entering the branches O D. The upper limb of the lever M projects upwardly or toward the side of the body of the mill, where the adjacent portion of said body is provided with a gate, Q, so disposed that when it is opened its motion is outward, so as to strike the upper limb of the lever M. The lever J is formed in sections united by a fusible joint, (I, which latter is within the body of the mill. If desired, the link K or lever G, or both, may be similarly constructed with a fusible joint, said joint in either case being affected by heat or fire occasioned or occurring within the body of the mill.

Connected with the levers G J are gates R S, respectively, which are located on the outside of the body of the mill, so as to cover the openings or slots 6 in the side of said body through which said levers pass, it being evident that the gates move with the levers when the latter are operated, so as to keep said open ings closed under all circumstances.

The operation is as follows: The mill is run as usual. Should there be an explosion within the same"a danger to which a mill of this class is liablethe gate Q is thrown open by the force of the explosion. This gate strikes the lever M, and by its thrust unseats it from the support P, whereby it drops, and as the levers J G are relieved of the holding action of said lever M the valve E is released, whereby it opens, and steam from the pipe P imme diately enters the mill and extinguishes the fire occasioned therein by the explosion. Should the explosion extend to the elevator A, the steam entering the same through the branch D serves to extinguish the fire therein. Should, however, the gate Q fail to open, the heat within the mill melts or fuses the joint (I, and as the valve E is no longer controlled by the lever M it is opened by the pressure of the steam from the pipe B, with the result above stated. Should fire occur within the mill, or excessive heat be occasioned, whereby fire may occur, without in either case creating an explosion, the joint d fuses, and the valve E opens, with results similar to that hereinbefore stated. Owing to the gates It S, theslots e in the side of the body, through which the levers G J pass, are kept closed during the motions of the latter, whereby steam is prevented from escaping through said slots.

It is evident that in lieu of steam I may employ any other suitable fire'extinguishing medium.

The shoulder N is niovably connected with the vertical limb of the lever M by means of yokes f, said limb being serrated, so that the several levers may be adjusted with nicety.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, isl 1. A mill having a fire extinguishing device consisting of a pipe for directing steam or other fire-extinguishing medium into the mill, a valve normally closed connected with said pipe, a lever attached to the stem of said valve, and a gate in the body of the mill adapted to strike said lever,substantially as described.

2. In a fire-extinguishing device for a mill, a pipe for steam or other fire-extinguishing medium leading into the same, a valve for said pipe, and a lever connected with the stem of the valve, said lever entering the mill and being formed in sections united by a fusible joint, substantially as described.

3. In a fire-extinguishing device for a mill, a pipe for directing steam or other extinguishing medium into the mill, the valve E, normally closed, connected with said pipe, the levers G .J, attached to the valve-stem, the lever M,

pivoted to the lever J, and the gate Q in the body of the mill, the lever M being adapted to receive the thrust of the gate Q in the event of an explosion in the mill, thus releasing the valve E, said parts being combined and operating substantially as described.

4. In a fire-extinguishing device for a mill, the mill A, with gate Q and elevator A, in combination with the steam-pipe B, having valve E, normally closed, and branch pipe D, the latter leading into said elevator, a lever, G, attached to the stem of said valve, and intermediate levers connecting with said lever G, adapted to be operated by the action of said gate Q, substantially as and for the purpose set forth.

5. In afire-extinguishing device for a mill, the mill A, with gate Q, in combination with the steam-pipe 13, having valve E, normally closed, and with lever G, thebranch pipe 0, and

the lever M, connected by a series of levers to said valve-stem, and having the shoulder N and the support P, substantially as and for the purpose set forth.

6. In a fireextinguishing device for a mill, a mill having a gate, in combination with a steam-inlet pipe with valve therein, a lever operated by the outward movement of said gate and connected with said valve, an adjustable shoulder to said lever, and a support for said shoulder.

7. In a device of the character named, a mill with the gate Q, in combination with an inlet-pipe for steam, with valve, a series of pivoted levers operated by the opening of the said gate and connected to the valve, and gates secured to the said levers and covering the openings through which the levers pass through the casing of the will, substantially as described.

PAUL J. PARSONS.

Witnesses:

JOHN A. WIEDERSHEIM, A. I. JENNINGS. 

